CN103896334B - Except the continuous feeding of scar sand and the Titanium Dioxide Produced by Chloride Procedure process units with it - Google Patents
Except the continuous feeding of scar sand and the Titanium Dioxide Produced by Chloride Procedure process units with it Download PDFInfo
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- CN103896334B CN103896334B CN201310664721.8A CN201310664721A CN103896334B CN 103896334 B CN103896334 B CN 103896334B CN 201310664721 A CN201310664721 A CN 201310664721A CN 103896334 B CN103896334 B CN 103896334B
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Abstract
The invention discloses a kind of continuous feeding except scar sand and there is its Titanium Dioxide Produced by Chloride Procedure process units.Described except the continuous feeding of scar sand, including: reinforced batch can, reinforced batch can has charge door, reinforced batch can is provided with relief valve and for detecting the induction apparatus of material capacity；Middle batch can, middle batch can is located at the downstream of reinforced batch can, is provided with for turning on and block reinforced batch can and the first baiting valve of middle batch can between reinforced batch can and middle batch can；And feed batch can, feed batch can is located at the downstream of middle batch can, having discharging opening on feed batch can, discharge outlet is provided with the blanking for regulating material transmission quantity and regulates device, is provided with the second baiting valve for turning on and block middle batch can and feed batch can between middle batch can and feed batch can.The continuous feeding except scar sand according to embodiments of the present invention can realize removing the transmission quantity of scar sand and accurately regulate, except scar sand can continuously and stably carry out discharging.
Description
Technical field
The present invention relates to titanium dioxide industry production technical field, especially relate to a kind of continuous feeding except scar sand and there is its Titanium Dioxide Produced by Chloride Procedure process units.
Background technology
The production of existing titanium dioxide mainly has sulfuric acid process and the big technique of chloridising two, and sulfuric acid process is suitable for producing the manufacture of anatase titanium dioxide, and chloridising is suitable for producing the manufacture of high-grade rutile-type coating titanium white, and shared production capacity ratio is more than 56%.Chloride process titanium dioxide technique includes titanium-riched material chlorination, TiCl4(titanium tetrachloride, titanium chloride) is refining, TiCl4Oxidation and TiO2(titanium dioxide, titanium dioxide) particle surface processes four main process, wherein TiCl4Oxidation is to prepare the step that rutile titanium dioxide is the most key.
But, in this oxidation reaction process, the inwall of reactor producing TiO2 and scab, thus causing that heat exchange is uneven, affecting course of reaction, even can block pipeline.So needing to spray into except scar sand removes TiO in oxidation reactor outlet2Scab.
Although in this course of reaction, the amount added except scar sand is relative and few, but has arrived critical effect in this oxidation reaction process.And accurately adding the quality affecting oxidation reaction product TiO2 and can produce continuously except scar sand, thus except the charging system of scar sand solid particle just becomes the problem first having to solve.
Summary of the invention
It is contemplated that at least solve one of technical problem of existence in prior art.For this, the present invention needs to provide a kind of except the continuous feeding of scar sand, can should realize accurately regulating except the transmission quantity of scar sand except the continuous feeding of scar sand, except scar sand can continuously and stably carry out discharging.
The present invention it is also required to provide a kind of Titanium Dioxide Produced by Chloride Procedure process units with this continuous feeding removing scar sand.
The continuous feeding removing scar sand of embodiment according to a first aspect of the present invention, including: reinforced batch can, described reinforced batch can has charge door, described reinforced batch can is provided with relief valve and for detecting the induction apparatus of material capacity；Middle batch can, described middle batch can is located at the downstream of described reinforced batch can, is provided with for turning on and block described reinforced batch can and the first baiting valve of described middle batch can between described reinforced batch can and described middle batch can；And feed batch can, described feed batch can is located at the downstream of described middle batch can, described feed batch can has discharging opening, described discharge outlet is provided with the blanking for regulating material transmission quantity and regulates device, is provided with for turning on and block described middle batch can and the second baiting valve of described feed batch can between described middle batch can and described feed batch can.
The continuous feeding removing scar sand according to embodiments of the present invention, by arranging the reinforced batch can being sequentially connected, middle batch can and feed batch can, and on feed batch can, it is arranged to control the blanking control valve of the transmission quantity except scar sand, thus, except the transmission quantity of scar sand can regulate accurately, except scar sand can continuously and stably carry out discharging.
It addition, the continuous feeding except scar sand according to the present invention also can have following additional technical feature:
According to one embodiment of present invention, described blanking adjustment device includes: Weightlessness balance, described Weightlessness balance is used for making described discharging opening continuous discharge.
According to one embodiment of present invention, described blanking regulates device and includes blanking control valve, and described blanking control valve is for controlling to remove the transmission quantity of described scar sand.
According to one embodiment of present invention, described farther include except the continuous feeding of scar sand: volume control device, described volume control device is located at the downstream of the inlet of described feed batch can and for regulating mass flow.
According to one embodiment of present invention, mass flow predetermined value, ranging for of described predetermined value: 980～2000kg/h it are preset with in described volume control device.
According to one embodiment of present invention, described farther include except the continuous feeding of scar sand: pressure relief pipe, described pressure relief pipe is located between described middle batch can and described reinforced batch can, and described pressure relief pipe is provided with on-off valve；Nitrogen supercharging device, described nitrogen supercharging device is located on described middle batch can.
According to one embodiment of present invention, described farther include except the continuous feeding of scar sand: fluidization is bored, and described fluidization cone is located at described middle batch can and/or described feed batch can bottom.
The Titanium Dioxide Produced by Chloride Procedure process units of embodiment according to a second aspect of the present invention, including: except the continuous feeding of scar sand, the described continuous feeding except scar sand be according to a first aspect of the present invention described in embodiment except the continuous feeding of scar sand；And oxidation reactor, described oxidation reactor connects with the material outlet of described pressure feeding spiral device.
Titanium Dioxide Produced by Chloride Procedure process units according to embodiments of the present invention, carry out removing the adding apparatus of scar sand by utilizing this to remove the continuous feeding of scar sand, owing to ejection continuously and stably can be carried out to except scar sand except the continuous feeding of scar sand, such that it is able to improve titanium white production quality, and can produce continuously, production efficiency is high, it is ensured that titanium chloride oxidation system normal table ground runs.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the equipment flowsheet of the continuous feeding except scar sand according to embodiments of the present invention.
Description of reference numerals:
Continuous feeding 100 except scar sand；
Reinforced batch can 1；Charge door 11；Induction apparatus 12；Relief valve 13；
Middle batch can 2；First baiting valve 21；Pressure relief pipe 22；On-off valve 23；Nitrogen supercharging device 24；
Feed batch can 3；Discharging opening 31；Second baiting valve 32；Blanking regulates device 33；Fluidization cone 34；
Pressure feeding spiral device 4.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Titanium Dioxide Produced by Chloride Procedure process units according to embodiments of the present invention is described first below, and Titanium Dioxide Produced by Chloride Procedure process units includes: except continuous feeding 100 and the oxidation reactor of scar sand, oxidation reactor is as TiCl in Titanium Dioxide Produced by Chloride Procedure production process4The reaction utensil of oxidation step.Except the continuous feeding 100 of scar sand is for spraying into except scar sand to oxidation reactor, with the TiO gone out on oxidation reactor inwall2Scab.
Referring again to Fig. 1, the continuous feeding 100 removing scar sand according to embodiments of the present invention is described.As it is shown in figure 1, the continuous feeding 100 removing scar sand according to embodiments of the present invention, including: reinforced batch can 1, middle batch can 2 and feed batch can 3.
Reinforced batch can 1 has charge door 11, except scar sand can join in reinforced batch can 1 from this charge door 11, reinforced batch can 1 is provided with relief valve 13, and relief valve 13 is for carrying out pressure release to whole except the continuous feeding 100 of scar sand, and makes reinforced batch can 1 keep atmospheric pressure state.Reinforced batch can 1 is additionally provided with the induction apparatus 12 for detecting material capacity, namely induction apparatus 12 is for detecting the level of filler material in reinforced batch can 1, this induction apparatus 12 is preset with maximum material level and minimum material level, stop when the material in reinforced batch can 1 reaches maximum material level reinforced, start to feed in raw material when the material in reinforced batch can 1 reaches minimum material level.
Middle batch can 2 is located at the downstream of reinforced batch can 1, and namely the scar sand that removes in reinforced batch can 1 flows out in middle batch can 2.It is provided with for turning on and block reinforced batch can 1 and the first baiting valve 21 of middle batch can 2 between reinforced batch can 1 and middle batch can 2, namely the first baiting valve 21 can turn on reinforced batch can 1 and middle batch can 2, first baiting valve 21 can also block reinforced batch can 1 and middle batch can 2, during conducting, except scar sand can flow into middle batch can 2 from reinforced batch can 1, when blocking, except scar sand will not flow out from reinforced batch can 1.
Feed batch can 3 is located at the downstream of middle batch can 2, and in the middle of namely, the scar sand that removes in batch can 2 flows out to feed batch can 3.Feed batch can 3 has discharging opening 31, except scar sand can spray from discharging opening 31.The second baiting valve 32 for turning on and block middle batch can 2 and feed batch can 3 it is provided with between middle batch can 2 and feed batch can 3, that is, second baiting valve 32 can turn on middle batch can 2 and feed batch can 3, second baiting valve 32 can also block middle batch can 2 and feed batch can 3, during conducting, except scar sand can flow to feed batch can 3 from middle batch can 2, when blocking, except scar sand will not flow out from middle batch can 2.Discharging opening 31 place is provided with the blanking for regulating material transmission quantity and regulates device 33, say, that except the transmission quantity of scar sand can be adjusted controlling by the blanking control valve of feed batch can 3.
The continuous feeding 100 removing scar sand according to embodiments of the present invention, by arranging the reinforced batch can 1 being sequentially connected, middle batch can 2 and feed batch can 3, and on feed batch can 3, it is arranged to control the blanking control valve of the transmission quantity except scar sand, thus, except the transmission quantity of scar sand can regulate accurately, except scar sand can continuously and stably carry out discharging.
Titanium Dioxide Produced by Chloride Procedure process units according to embodiments of the present invention, carry out removing the adding apparatus of scar sand by utilizing this to remove the continuous feeding of scar sand 100, owing to ejection continuously and stably can be carried out to except scar sand except the continuous feeding 100 of scar sand, such that it is able to improve titanium white production quality, and can produce continuously, production efficiency is high, it is ensured that titanium chloride oxidation system normal table ground runs.
In some embodiments of the invention, blanking regulates device 33 and may include that Weightlessness balance, Weightlessness balance are used for making discharging opening 31 continuous discharge.Weightlessness balance is the weighing-appliance being interrupted feed continuous discharge, by arranging Weightlessness balance, such that it is able to carry out being interrupted feed, continuous discharge to except scar sand.Blanking regulates device 33 can also include blanking control valve, and blanking control valve is for controlling to remove the transmission quantity of scar sand.Thus can improve further except the stability of scar sand discharging.
As it is shown in figure 1, in some embodiments of the invention, except the continuous feeding 100 of scar sand farther includes: volume control device (not shown go out).Volume control device is located at the downstream of the inlet of feed batch can 3, and volume control device is used for regulating mass flow.The speed removing the discharging of scar sand thus can be made automatically controlled, it is ensured that except all even stable ejection in transmission pipeline of scar sand.
Specifically, in volume control device, it is preset with mass flow predetermined value, ranging for of predetermined value: 980～2000kg/h.It is to say, volume control device controls to control within the scope of 980～2000kg/h except the spouting velocity of scar sand, the continuous feeding 100 removing scar sand is thus conducive to be applicable to more practical situations.Advantageously, this spouting velocity has allowed deviation, and alternatively, the deviation of this spouting velocity can be ± 0.7kg/min.
As it is shown in figure 1, except the continuous feeding 100 of scar sand can also include: pressure relief pipe 22 and nitrogen supercharging device 24.Pressure relief pipe 22 is located between middle batch can 2 and reinforced batch can 1, and pressure relief pipe 22 is provided with on-off valve 23, and nitrogen supercharging device 24 is located on middle batch can 2.
On-off valve 23 on pressure relief pipe 22 has conducting and blocks two duties, when on-off valve 23 is positioned at conducting state, pressure relief pipe 22 has connected middle batch can 2 and reinforced batch can 1, in the middle of now, the pressure in batch can 2 can keep consistent with the pressure in reinforced batch can 1, it should be noted that, from reinforced batch can 1 to middle batch can 2 charging, the pressure of middle batch can 2 is more than the pressure of reinforced batch can 1, when namely needing from reinforced batch can 1 to middle batch can 2 charging, need on-off valve 23 is placed in conduction position, the pressure between reinforced batch can 1 and middle batch can 2 is made to keep consistent, be conducive to removing scar sand to flow from reinforced batch can 1 to middle batch can 2.
Nitrogen supercharging device 24 may be used for filling nitrogen in middle batch can 2, so that the pressure in middle batch can 2 increases.It should be noted that before feeding in raw material from middle batch can 2 to feed batch can 3, the pressure of middle batch can 2 is less than the pressure of feed batch can 3, in order to ensure making except scar sand flows to feed batch can 3 from middle batch can 2, it is necessary to make the pressure of middle batch can 2 promote.To sum up, middle batch can 2 can play the effect of intermediate buffering, it is possible to the conversion between pressure vessel and vessels not under pressure.
Except the continuous feeding 100 of scar sand also includes: fluidization cone 34, fluidization cone 34 is located at middle batch can 2 and/or feed batch can 3 bottom.It is to say, the bottom of middle batch can 2 can be provided with fluidization cone 34, the bottom of feed batch can 3 can also be provided with fluidization cone 34, or, middle batch can 2 and feed batch can 3 can be simultaneously provided with fluidization cone 34.Fluidization cone 34 for spraying into gas at a high speed in middle batch can 2 and/or feed batch can 3, so that being broken up by gas except scar sand powder in middle batch can 2 and feed batch can 3, and then form uniform powder, gas enters in middle batch can 2 and/or feed batch can 3, can be enclosed in around material particles, thus realizing the fluidization of material, thus obtaining the mixture of the alternate gentle body of fluidised form compound of height-low-density.Thus can ensure that except scar sand material state is uniform, spray effective, it is also possible to avoid removing scar sand plug stuffing material pipeline.
An example according to the present invention, except the continuous feeding 100 of scar sand can also include pressure feeding spiral device 4, pressure feeding spiral device 4 is located at the downstream of feed batch can 3, and pressure feeding spiral device 4 has material ejiction opening, to spray into except scar sand in oxidation reactor.By arranging this pressure feeding spiral device 4, such that it is able to carrying out crushing material further except scar sand, so that what spray removes scar sand more uniformly, except scar is effective, do not block materail tube.
Referring to Fig. 1, the workflow of the description continuous feeding 100 except scar sand according to embodiments of the present invention.
Time reinforced, it is possible to directly add except scar sand in reinforced batch can 1, addition carry out monitoring material position by the induction apparatus 12 on reinforced batch can 1 except scar sand, when add reach setting value (maximum material level) except scar sand after, stop reinforced.The scar sand that removes added is stored in reinforced batch can 1 stand-by.When needs feed in raw material from reinforced batch can 1 toward middle batch can 2, it is first shut off the second baiting valve 32 between middle batch can 2 and feed batch can 3, in the middle of now, batch can 2 belongs to pressure vessel, its internal pressure is more than the pressure of reinforced batch can 1, at this moment on-off valve 23 is made to be placed in conduction position, pressure release is carried out, so that middle batch can 2 keeps consistent with the pressure of reinforced batch can 1 by the pressure relief pipe 22 between middle batch can 2 and reinforced batch can 1.After pressure release, open the first baiting valve 21 between reinforced batch can 1 and middle batch can 2, except scar sand enters in middle batch can 2 by self gravitation, when in the reinforced batch can 1 that induction apparatus 12 detects arrive setting value (minimum material level) except scar sand material level after, close the first baiting valve 21.
When needs feed in raw material from middle batch can 2 to feed batch can 3, now need to close the pressure relief pipe 22 between reinforced batch can 1 and middle batch can 2, the nitrogen supercharging device 24 of batch can 2 in the middle of opening, middle batch can 2 is carried out supercharging, when the pressure of middle batch can 2 equals to or more than the pressure of feed batch can 3, opening the second baiting valve 32 between middle batch can 2 and feed batch can 3, middle batch can 2 can carry out feed supplement in feed batch can 3.Feed batch can 3 can be weighed except the conveying capacity of scar sand by Weightlessness balance, and conveying can be adjusted by the blanking control valve of feed batch can 3 except the amount of scar sand, also the tolerance of conveying is suitably adjusted simultaneously.Thus can make to remove scar sand continuously and stably to spray from feed batch can 3.
The continuous feeding 100 removing scar sand according to embodiments of the present invention, it is possible to achieve except the transmission quantity of scar sand accurately regulates, except scar sand can continuously and stably carry out discharging.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof.
Claims (6)
1. the continuous feeding removing scar sand, it is characterised in that including:
Reinforced batch can, described reinforced batch can has charge door, and described reinforced batch can is provided with relief valve and for detecting the induction apparatus of material capacity；
Middle batch can, described middle batch can is located at the downstream of described reinforced batch can, is provided with for turning on and block described reinforced batch can and the first baiting valve of described middle batch can between described reinforced batch can and described middle batch can；
Feed batch can, described feed batch can is located at the downstream of described middle batch can, described feed batch can has discharging opening, described discharge outlet is provided with the blanking for regulating material transmission quantity and regulates device, is provided with for turning on and block described middle batch can and the second baiting valve of described feed batch can between described middle batch can and described feed batch can；And
Volume control device, described volume control device is located at the downstream of the inlet of described feed batch can and for regulating mass flow, is preset with mass flow predetermined value, ranging for of described predetermined value: 980～2000kg/h in described volume control device.
2. according to claim 1 except the continuous feeding of scar sand, it is characterised in that described blanking regulates device and includes: Weightlessness balance, described Weightlessness balance is used for making described discharging opening continuous discharge.
3. according to claim 1 and 2 except the continuous feeding of scar sand, it is characterised in that described blanking regulates device and includes blanking control valve, described blanking control valve is for controlling to remove the transmission quantity of described scar sand.
4. according to claim 1 except the continuous feeding of scar sand, it is characterised in that to farther include:
Pressure relief pipe, described pressure relief pipe is located between described middle batch can and described reinforced batch can, and described pressure relief pipe is provided with on-off valve；
Nitrogen supercharging device, described nitrogen supercharging device is located on described middle batch can.
5. according to claim 1 except the continuous feeding of scar sand, it is characterised in that to farther include: fluidization is bored, described fluidization cone is located at described middle batch can and/or described feed batch can bottom.
6. a Titanium Dioxide Produced by Chloride Procedure process units, it is characterised in that including:
Continuous feeding except scar sand, the described continuous feeding except scar sand is the continuous feeding removing scar sand according to any one of claim 1-5, be provided with pressure feeding spiral device in the downstream of described feed batch can, described pressure feeding spiral device has material ejiction opening；
Oxidation reactor, described oxidation reactor connects with the material ejiction opening of described pressure feeding spiral device.
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| CN201310664721.8A CN103896334B (en) | 2013-12-09 | 2013-12-09 | Except the continuous feeding of scar sand and the Titanium Dioxide Produced by Chloride Procedure process units with it |
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| CN201310664721.8A CN103896334B (en) | 2013-12-09 | 2013-12-09 | Except the continuous feeding of scar sand and the Titanium Dioxide Produced by Chloride Procedure process units with it |
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| CN103896334B true CN103896334B (en) | 2016-07-06 |
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| CN105434171B (en) * | 2015-12-28 | 2021-08-31 | 吉林省农业机械研究院 | Micropressure type traditional Chinese medicine decocting machine with secondary medicine adding device |
| CN107697949B (en) * | 2017-11-13 | 2023-09-08 | 龙佰集团股份有限公司 | Titanium dioxide production process for chloridizing scar-removing sand by sulfuric acid method kiln dropping product |
| CN113845145A (en) * | 2021-11-15 | 2021-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | Scar-proof device of titanium white chloride oxidation reactor and oxidation reactor |
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| CN1391078A (en) * | 2001-06-11 | 2003-01-15 | 中国科学院化工冶金研究所 | Oxidizing furnace able to remove scar by spraying titanium oxide particles and chlorination process and its method for removing scar |
| CN2885828Y (en) * | 2006-03-31 | 2007-04-04 | 清华大学 | Sol feeder device |
| CN102756920A (en) * | 2012-07-30 | 2012-10-31 | 巨石集团有限公司 | Continuous dense-phase positive-pressure pneumatic conveying apparatus and conveying method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917700B2 (en) * | 1978-11-30 | 1984-04-23 | 花王株式会社 | Powder continuous transport equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1391078A (en) * | 2001-06-11 | 2003-01-15 | 中国科学院化工冶金研究所 | Oxidizing furnace able to remove scar by spraying titanium oxide particles and chlorination process and its method for removing scar |
| CN2885828Y (en) * | 2006-03-31 | 2007-04-04 | 清华大学 | Sol feeder device |
| CN102756920A (en) * | 2012-07-30 | 2012-10-31 | 巨石集团有限公司 | Continuous dense-phase positive-pressure pneumatic conveying apparatus and conveying method |
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